Discount Water Filters and Air Filters at Discount Filter Store.com

When we protect your filter purchase with our No Worries Guarantee, we mean it!

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  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
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  • You’re guaranteed to find expert help!

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Water Filtration Systems & Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

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Items 1 to 48 of 63 total

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  • FXUSC GE Comparable Whole House Sediment Water Filter 2-Pack by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • RS6 OmniFilter Comparable Whole House Water Filter by Tier1

    RS6 OmniFilter Comparable Whole House Water Filter by Tier1

    $12.99
    MSRP: $17.99
    Save 28%
  • R30-20BB Pentek Comparable Whole House Sediment Water Filter by Tier1
  • DuPont WFPT200X Mirage Filtered Water Pitcher
  • DuPont WFPTC050X Water Pitcher Replacement Cartridge
  • DuPont WFPTC053X Water Pitcher Replacement Cartridge 3 Pack
  • BF7-S-06 OmniFilter Undersink Filter System

    BF7-S-06 OmniFilter Undersink Filter System

    $84.39
    MSRP: $104.99
    Save 20%
  • Hydronix SPC-45-1030 Sediment Water Filter - Pleated

    SPC-45-1030 Hydronix Pleated Sediment Water Filter

    $17.99 MSRP: $19.54
    Save 8%
  • Pentek CW-MF Whole House Water Filter Replacement Cartridge

    CW-MF Pentek Whole House Filter Replacement Cartridge

    $6.99 MSRP: $10.34
    Save 32%
  • R30BB Pentek Comparable Whole House Water Filter by Tier1

    R30BB Pentek Tier1 Comparable Whole House Water Filter

    $15.99 MSRP: $17.99
    Save 11%
  • RS6-SS2-S06 OmniFilter Whole House Cartridge
  • P20 Pentek 10 x 2.5-inch Comparable Whole House Sediment Water Filter
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (4-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Waters Filter by Tier1 (6-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1 (12-Pack)
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    ECP5-BB Pentek Comparable Whole House Water Filter by Tier1

    $15.99 MSRP: $17.99
    Save 11%
  • W30W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • W50W American Plumber Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1030 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-1050-Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • SWC-25-10100 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • CW-50 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • CW-MF Pentek Comparable Whole House Sediment Water Filter by Tier1
  • WP-30 Pentek Comparable Whole House Sediment Filter by Tier1
  • RS7-SS OmniFilter Comparable Whole House Sediment Water Filter by Tier1
  • HB-20-50W Harmsco Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2030 Pentek Comparable Whole House Sediment Water Filter by Tier1
  • SPC-45-2050 Hydronix Comparable Whole House Sediment Water Filter by Tier1
  • Hytrex GX30-20 Polypropylene Sediment Filter

    Hytrex GX30-20 Polypropylene Sediment Filter

    $11.59
    MSRP: $18.99
    Save 39%
  • W30PE American Plumber Whole House Sediment Filter Cartridge (2-Pack)
  • W30PEHD American Plumber Whole House Heavy Duty Filter Cartridge
  • W30W American Plumber Whole House Sediment Water Filter Cartridge (2-Pack)
  • PR-1U Culligan Universal Water Pitcher Replacement Cartridge
  • PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)

    PR-3 Culligan Water Pitcher Replacement Cartridge (3-Pack)

    $23.79
    MSRP: $33.99
    Save 30%
  • FXHSC GE SmartWater Whole House Filter Replacement Cartridge
  • FXUSC GE SmartWater Whole House Filter Replacement
  • FXSCH GE Shower Replacement Filter Cartridge

    FXSCH GE Shower Replacement Filter Cartridge

    $15.99
    MSRP: $27.99
    Save 43%
  • GXRTDR GE SmartWater Inline Filter Cartridge

    GXRTDR GE SmartWater Inline Filter Cartridge

    $20.99
    MSRP: $30.99
    Save 32%
  • PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    PCF1-10MB Pentek Whole House Filter Replacement Cartridge

    $24.99
    MSRP: $30.69
    Save 19%
  • R30-478 Pentek Undersink Filter Replacement Cartridge

    R30-478 Pentek Undersink Filter Replacement Cartridge

    $8.99
    MSRP: $12.75
    Save 29%
  • WP-30 Pentek Whole House Filter Replacement Cartridge

    WP-30 Pentek Whole House Filter Replacement Cartridge

    $6.99
    MSRP: $8.15
    Save 14%
  • PX30-20 Purtrex Replacement Filter Cartridge

    PX30-20 Purtrex Replacement Water Filter Cartridge

    $6.89
    MSRP: $9.19
    Save 25%
  • PX30-9-78 Purtrex Replacement Filter Cartridge

    PX30-9-78 Purtrex Replacement Water Filter Cartridge

    $4.09
    MSRP: $9.99
    Save 59%
  • WHKF-WHPL Whirlpool Whole House Replacement Sediment Filter Cartridge (2-Pack)
  • GX30-9-78 Hytrex Replacement Filter Cartridge

    GX30-9-78 Hytrex Water Filter Cartridge

    $5.99
    MSRP: $8.61
    Save 30%
  • BF7-S-05 OmniFilter Undersink Filter System

    BF7-S-05 OmniFilter Undersink Water Filtration System

    $69.99
    MSRP: $82.79
    Save 15%

Items 1 to 48 of 63 total

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